protected override void OnAttachedToVisualTree(VisualTreeAttachmentEventArgs e)
{
if (!string.IsNullOrEmpty(GroupName))
{
_groupManager?.Remove(this, _groupName);
_groupManager = RadioButtonGroupManager.GetOrCreateForRoot(e.Root);
_groupManager.Add(this);
}
base.OnAttachedToVisualTree(e);
}
private void SetGroupName(string newGroupName)
{
string oldGroupName = GroupName;
if (newGroupName != oldGroupName)
{
if (!string.IsNullOrEmpty(oldGroupName) && _groupManager != null)
{
_groupManager.Remove(this, oldGroupName);
}
_groupName = newGroupName;
if (!string.IsNullOrEmpty(newGroupName))
{
if (_groupManager == null)
{
_groupManager = RadioButtonGroupManager.GetOrCreateForRoot(this.GetVisualRoot());
}
_groupManager.Add(this);
}
}
}